The Collective Consciousness

“I’d like to teach the world to sing in perfect harmony.” I’m sure those words have already got some of you humming — at least those of you who remember the can’t-get-it-out-of-your-head tune sung by a multicultural group of braided, bell-bottomed and impossibly sunny youth as they shared the commonality of Coca-Cola on a hilltop in Italy nearly 40 years ago.